Hello,

 

Firstly I'd like to thank you technical guys for helping me with my tick over problem, where my 92 turbo was idling at around 1700-2000rpm when she had warmed up. I spent ages checking connector contacts and the PTU thingy to no avail and as I was totally losing hope I read about an old thread about the Idle Solenoid Valve sticking (the thought of removing this was not a happy one). Someone (can't remember who) suggested removing one of the rubber tubes going to the solenoid valve and spraying some WD-40 in to lubricate it. I tried this and it's sorted !!! :dance: Thank-you guys.

 

On the same topic, is there anyway that this sticking solenoid valve could affect boost pressure ???

 

I know someone who has this problem on his 300ZX TT.

 

Lloyd

The solinoid would not effect boost pressue unless you have a boost leak.

 

How much boost do you think you have lost ?

Do you have an aftermarket gauge ?

 

Obvious places to check is under the throttle boddies, there is a hose connected to the bottom of each one, most common boost leaks start here with it popping off.

Hi, I've got 360 bearing turbo's, 1 bar chip, G-Ready Profec B Spec 2 Boost controller she won't go over 10.5 PSI. The stock boost solenoids are removed electrically and the tube is also removed from them.

 

Lloyd

Is there a noticable loss of peak boost, i.e it get's to 10.5 and drops a bit up the rev range or is it a stable 10.5 psi??

It's a stable peak of 10.5 PSI tried adjusting the Boost Controller Settings as per recommended.

 

Lloyd

Make sure your Profec is ON and all plumbing/wiring is correct. I get 10 odd PSI when my profec B II is OFF

ok will check this, was just wondering as the idle solenoid valve is conected to the boost pipes from the turbo on the passenger side. Could it not bleed off pressure if it was stuck open ?

 

Lloyd